aboutsummaryrefslogtreecommitdiff
path: root/docs/man/nn_poll.3compat.adoc
diff options
context:
space:
mode:
authorGarrett D'Amore <garrett@damore.org>2024-09-07 10:05:27 -0700
committerGarrett D'Amore <garrett@damore.org>2024-10-06 13:53:57 -0700
commit74adece2303ab7c2b05459c7ff24b362e9660068 (patch)
tree61aa056b0511c444cd6d3163bbbff7fb39e1e9e7 /docs/man/nn_poll.3compat.adoc
parentcd77f58b041889f35887736c59b3eaedb60bd84c (diff)
downloadnng-74adece2303ab7c2b05459c7ff24b362e9660068.tar.gz
nng-74adece2303ab7c2b05459c7ff24b362e9660068.tar.bz2
nng-74adece2303ab7c2b05459c7ff24b362e9660068.zip
Remove the documentation for 3compat.
Diffstat (limited to 'docs/man/nn_poll.3compat.adoc')
-rw-r--r--docs/man/nn_poll.3compat.adoc102
1 files changed, 0 insertions, 102 deletions
diff --git a/docs/man/nn_poll.3compat.adoc b/docs/man/nn_poll.3compat.adoc
deleted file mode 100644
index c115fe49..00000000
--- a/docs/man/nn_poll.3compat.adoc
+++ /dev/null
@@ -1,102 +0,0 @@
-= nn_poll(3compat)
-//
-// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
-// Copyright 2018 Capitar IT Group BV <info@capitar.com>
-//
-// This document is supplied under the terms of the MIT License, a
-// copy of which should be located in the distribution where this
-// file was obtained (LICENSE.txt). A copy of the license may also be
-// found online at https://opensource.org/licenses/MIT.
-//
-
-== NAME
-
-nn_poll - poll sockets (compatible API)
-
-== SYNOPSIS
-
-[source, c]
-----
-#include <nanomsg/nn.h>
-
-#define NN_POLLIN 1
-#define NN_POLLOUT 2
-
-struct nn_pollfd {
- int fd;
- uint16_t events;
- uint16_t revents;
-};
-
-int nn_poll(struct nn_pollfd *pfds, int npfd, int timeout);
-----
-
-== DESCRIPTION
-
-The `nn_poll()` function polls a group of sockets for readiness to send or receive.
-
-NOTE: This function is provided for API
-xref:nng_compat.3compat.adoc[compatibility] with legacy _libnanomsg_.
-Consider using the relevant xref:libnng.3.adoc[modern API] instead.
-
-The array of _nfds_ sockets to poll for are passed into _pfds_.
-Each member of this array is initialized with the `fd` field set to
-the socket, and the `events` field set to a mask that can contain either or both
-of the flags `NN_POLLIN` and `NN_POLLOUT`.
-
-The flag `NN_POLLIN` indicates that a socket is ready for receiving without
-blocking (a message is available on the socket), and the flag `NN_POLLOUT`
-indicates that a socket is ready for sending without blocking.
-
-Upon success, the function returns the number of updates the `revents`
-field of each member of the _pfds_ array, setting it to indicate
-whether the requested status is true or not.
-
-NOTE: The `revents` field will only have a flag set if the corresponding
-flag was also set in the `events` field.
-
-If the _timeout_ field is positive, then this function will wait for
-up the that many milliseconds.
-If none of the requested events occurs before that timeout occurs, then
-the function will return -1 and set the error to `ETIMEDOUT`.
-
-If the _timeout_ is zero, then this function will return immediately,
-after updating the current status of the sockets.
-
-If the _timeout_ is -1, then the function waits forever, or until one of the
-requested events occurs.
-
-IMPORTANT: This function is only suitable for use with sockets obtained with the
-xref:nn_socket.3compat.adoc[`nn_socket()`] function, and is not compatible
-with file descriptors obtained via any other means.
-This includes file descriptors obtained using the `NN_SNDFD` or `NN_RCVFD`
-options with xref:nn_getsockopt.3compat.adoc[`nn_getsockopt()`]
-
-NOTE: This function is significantly less efficient than other polling
-or asynchronous I/O mechanisms, and is provided for API compatibility only.
-It's use is discouraged.
-
-NOTE: This function is *not* supported on systems other than POSIX derived
-platforms and Windows.
-
-== RETURN VALUES
-
-This function returns the number of sockets with events on success, or -1 on error.
-
-== ERRORS
-
-[horizontal]
-`ENOMEM`:: Insufficient memory available.
-`EBADF`:: One of the sockets is not open.
-`ETIMEDOUT`:: Operation timed out.
-`ENOTSUP`:: This function is not supported on this platform.
-
-== SEE ALSO
-
-[.text-left]
-xref:nn_errno.3compat.adoc[nn_errno(3compat)],
-xref:nn_recv.3compat.adoc[nn_recv(3compat)],
-xref:nn_send.3compat.adoc[nn_send(3compat)],
-xref:nn_socket.3compat.adoc[nn_socket(3compat)],
-xref:nng_compat.3compat.adoc[nn_compat(3compat)],
-xref:nng.7.adoc[nng(7)]